9952712272021 has 2 divisors, whose sum is σ = 9952712272022. Its totient is φ = 9952712272020.

The previous prime is 9952712272007. The next prime is 9952712272043. The reversal of 9952712272021 is 1202722172599.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6990048576900 + 2962663695121 = 2643870^2 + 1721239^2 .

It is an emirp because it is prime and its reverse (1202722172599) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9952712272021 - 2⁵ = 9952712271989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9952712272051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4976356136010 + 4976356136011.

It is an arithmetic number, because the mean of its divisors is an integer number (4976356136011).

Almost surely, 2^{9952712272021} is an apocalyptic number.

It is an amenable number.

9952712272021 is a deficient number, since it is larger than the sum of its proper divisors (1).

9952712272021 is an equidigital number, since it uses as much as digits as its factorization.

9952712272021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 635040, while the sum is 49.

The spelling of 9952712272021 in words is "nine trillion, nine hundred fifty-two billion, seven hundred twelve million, two hundred seventy-two thousand, twenty-one".